I think you can go in two directions with job boards today. It really depends what your end goal is.
Do you want to build a business? or is your goal just to monetize the domain name?
1. Build a ‘business’ based around community and jobs. (that’s what Rigzone did)
Obviously this takes the most time & resources…requires long term time horizon.
2. Go with a simple monetization strategy.
Both options take time but #1 has the most potential value. A vibrant community with jobs is usually more valuable than just a job site.
Just a few words of wisdom for your monday morning…